"Zuxy Meng" <zuxy.meng@xxxxxxxxx> writes: > We have a big project that might benefit from precompiled headers but we > don't want to append tens of thousands of .c files with #include "master.h". > Can we simply add -include "master.h" to CPPFLAGS during building? Yes. > In this > way, is "master.h" the 1st one to be included for any .c file? Yes. > Will gcc make > use of master.gch if master.h is given in command line? Yes. Ian